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Statistics - dispersion - Interquartile range.
Test Yourself 1.


 

Calculation.

Calculate the interquartile ranges for each of the following data sets.

ordered sets

12, 25, 31, 42, 46, 50, 55, 68. 70, 72

   
  Unordered set
   
What happens when numbers are added at end, in middle, etc
   
  numbers are removed
   
   
  two sets are combined